- All sections
- E - Fixed constructions
- E21B - Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 1/00 - Percussion drilling
Patent holdings for IPC class E21B 1/00
Total number of patents in this class: 200
10-year publication summary
21
|
31
|
21
|
31
|
18
|
12
|
15
|
9
|
6
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Epiroc Rock Drills Aktiebolag | 405 |
13 |
Sandvik Mining and Construction Oy | 703 |
11 |
Sandvik Intellectual Property AB | 1634 |
9 |
Mincon International Limited | 52 |
6 |
Sandvik Mining and Construction Tools AB | 147 |
6 |
Schlumberger Technology Corporation | 9690 |
5 |
Strada Design Limited | 9 |
5 |
Tracto-Technik GmbH & Co. KG | 166 |
5 |
Flexidrill Limited | 53 |
4 |
Hard Rock Horizontal Directional Drilling Products, Inc. | 6 |
4 |
Halliburton Energy Services, Inc. | 20165 |
3 |
Saudi Arabian Oil Company | 11322 |
3 |
Epiroc Drilling Tools Aktiebolag | 89 |
3 |
Varel Mining and Industrial LLC | 9 |
3 |
Baker Hughes Incorporated | 5689 |
2 |
Hilti Aktiengesellschaft | 3227 |
2 |
Aramco Services Company | 3504 |
2 |
Atlas Copco Secoroc LLC | 19 |
2 |
Boart Longyear | 4 |
2 |
Construction Tools PC AB | 22 |
2 |
Other owners | 108 |